Description
The SGM3803 is a constant frequency, current mode, synchronous step-up switching regulator with 200mA negative charge pump inverter which generates an unregulated negative output voltage from an input voltage ranging from 1.4V to 5.5V.
Features
- Boost DC/DC.
- 90% Efficient Synchronous Boost Converter.
- Device Quiescent Current: 30µA (TYP).
- Less than 1μA Shutdown Current.
- Input Voltage Range: 2.7V to 5.5V.
- Output Voltage Clamping: 6V.
- Adjustable Output Voltage Up to 5.5V.
- Power-Save Mode for Improved Efficiency at Low Output Power.
- Load Disconnect During Shutdown.
- Low Reverse Leakage Current when VOUT1 > VCC.
- 1.8V Logic on EN1 Pin for Control.
- Over-Temperature Protection
Negative Charg.
SGM3803 Datasheet
